ICU 71.1 71.1

simpletz.h
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1 // © 2016 and later: Unicode, Inc. and others.
2 // License & terms of use: http://www.unicode.org/copyright.html
3 /*
4 ********************************************************************************
5 * Copyright (C) 1997-2013, International Business Machines *
6 * Corporation and others. All Rights Reserved. *
7 ********************************************************************************
8 *
9 * File SIMPLETZ.H
10 *
11 * Modification History:
12 *
13 * Date Name Description
14 * 04/21/97 aliu Overhauled header.
15 * 08/10/98 stephen JDK 1.2 sync
16 * Added setStartRule() / setEndRule() overloads
17 * Added hasSameRules()
18 * 09/02/98 stephen Added getOffset(monthLen)
19 * Changed getOffset() to take UErrorCode
20 * 07/09/99 stephen Removed millisPerHour (unused, for HP compiler)
21 * 12/02/99 aliu Added TimeMode and constructor and setStart/EndRule
22 * methods that take TimeMode. Added to docs.
23 ********************************************************************************
24 */
25
26 #ifndef SIMPLETZ_H
27 #define SIMPLETZ_H
28
29 #include "unicode/utypes.h"
30
31 #if U_SHOW_CPLUSPLUS_API
32
38 #if !UCONFIG_NO_FORMATTING
39
40 #include "unicode/basictz.h"
41
42 U_NAMESPACE_BEGIN
43
44 // forward declaration
45 class InitialTimeZoneRule;
46 class TimeZoneTransition;
47 class AnnualTimeZoneRule;
48
65 class U_I18N_API SimpleTimeZone: public BasicTimeZone {
66 public:
67
79 enum TimeMode {
80 WALL_TIME = 0,
81 STANDARD_TIME,
82 UTC_TIME
83 };
84
90 SimpleTimeZone(const SimpleTimeZone& source);
91
97 SimpleTimeZone& operator=(const SimpleTimeZone& right);
98
103 virtual ~SimpleTimeZone();
104
114 virtual bool operator==(const TimeZone& that) const override;
115
127 SimpleTimeZone(int32_t rawOffsetGMT, const UnicodeString& ID);
128
164 SimpleTimeZone(int32_t rawOffsetGMT, const UnicodeString& ID,
165 int8_t savingsStartMonth, int8_t savingsStartDayOfWeekInMonth,
166 int8_t savingsStartDayOfWeek, int32_t savingsStartTime,
167 int8_t savingsEndMonth, int8_t savingsEndDayOfWeekInMonth,
168 int8_t savingsEndDayOfWeek, int32_t savingsEndTime,
169 UErrorCode& status);
207 SimpleTimeZone(int32_t rawOffsetGMT, const UnicodeString& ID,
208 int8_t savingsStartMonth, int8_t savingsStartDayOfWeekInMonth,
209 int8_t savingsStartDayOfWeek, int32_t savingsStartTime,
210 int8_t savingsEndMonth, int8_t savingsEndDayOfWeekInMonth,
211 int8_t savingsEndDayOfWeek, int32_t savingsEndTime,
212 int32_t savingsDST, UErrorCode& status);
213
255 SimpleTimeZone(int32_t rawOffsetGMT, const UnicodeString& ID,
256 int8_t savingsStartMonth, int8_t savingsStartDayOfWeekInMonth,
257 int8_t savingsStartDayOfWeek, int32_t savingsStartTime,
258 TimeMode savingsStartTimeMode,
259 int8_t savingsEndMonth, int8_t savingsEndDayOfWeekInMonth,
260 int8_t savingsEndDayOfWeek, int32_t savingsEndTime, TimeMode savingsEndTimeMode,
261 int32_t savingsDST, UErrorCode& status);
262
271 void setStartYear(int32_t year);
272
315 void setStartRule(int32_t month, int32_t dayOfWeekInMonth, int32_t dayOfWeek,
316 int32_t time, UErrorCode& status);
361 void setStartRule(int32_t month, int32_t dayOfWeekInMonth, int32_t dayOfWeek,
362 int32_t time, TimeMode mode, UErrorCode& status);
363
375 void setStartRule(int32_t month, int32_t dayOfMonth, int32_t time,
376 UErrorCode& status);
390 void setStartRule(int32_t month, int32_t dayOfMonth, int32_t time,
391 TimeMode mode, UErrorCode& status);
392
409 void setStartRule(int32_t month, int32_t dayOfMonth, int32_t dayOfWeek,
410 int32_t time, UBool after, UErrorCode& status);
429 void setStartRule(int32_t month, int32_t dayOfMonth, int32_t dayOfWeek,
430 int32_t time, TimeMode mode, UBool after, UErrorCode& status);
431
454 void setEndRule(int32_t month, int32_t dayOfWeekInMonth, int32_t dayOfWeek,
455 int32_t time, UErrorCode& status);
456
481 void setEndRule(int32_t month, int32_t dayOfWeekInMonth, int32_t dayOfWeek,
482 int32_t time, TimeMode mode, UErrorCode& status);
483
495 void setEndRule(int32_t month, int32_t dayOfMonth, int32_t time, UErrorCode& status);
496
510 void setEndRule(int32_t month, int32_t dayOfMonth, int32_t time,
511 TimeMode mode, UErrorCode& status);
512
529 void setEndRule(int32_t month, int32_t dayOfMonth, int32_t dayOfWeek,
530 int32_t time, UBool after, UErrorCode& status);
531
550 void setEndRule(int32_t month, int32_t dayOfMonth, int32_t dayOfWeek,
551 int32_t time, TimeMode mode, UBool after, UErrorCode& status);
552
573 virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day,
574 uint8_t dayOfWeek, int32_t millis, UErrorCode& status) const override;
575
591 virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day,
592 uint8_t dayOfWeek, int32_t milliseconds,
593 int32_t monthLength, UErrorCode& status) const override;
610 virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day,
611 uint8_t dayOfWeek, int32_t milliseconds,
612 int32_t monthLength, int32_t prevMonthLength,
613 UErrorCode& status) const;
614
620 virtual void getOffset(UDate date, UBool local, int32_t& rawOffset,
621 int32_t& dstOffset, UErrorCode& ec) const override;
622
627 virtual void getOffsetFromLocal(
628 UDate date, UTimeZoneLocalOption nonExistingTimeOpt,
629 UTimeZoneLocalOption duplicatedTimeOpt,
630 int32_t& rawOffset, int32_t& dstOffset, UErrorCode& status) const override;
631
639 virtual int32_t getRawOffset(void) const override;
640
648 virtual void setRawOffset(int32_t offsetMillis) override;
649
659 void setDSTSavings(int32_t millisSavedDuringDST, UErrorCode& status);
660
669 virtual int32_t getDSTSavings(void) const override;
670
677 virtual UBool useDaylightTime(void) const override;
678
679 #ifndef U_FORCE_HIDE_DEPRECATED_API
680
694 virtual UBool inDaylightTime(UDate date, UErrorCode& status) const override;
695 #endif // U_FORCE_HIDE_DEPRECATED_API
696
703 UBool hasSameRules(const TimeZone& other) const override;
704
712 virtual SimpleTimeZone* clone() const override;
713
722 virtual UBool getNextTransition(UDate base, UBool inclusive, TimeZoneTransition& result) const override;
723
732 virtual UBool getPreviousTransition(UDate base, UBool inclusive, TimeZoneTransition& result) const override;
733
742 virtual int32_t countTransitionRules(UErrorCode& status) const override;
743
760 virtual void getTimeZoneRules(const InitialTimeZoneRule*& initial,
761 const TimeZoneRule* trsrules[], int32_t& trscount, UErrorCode& status) const override;
762
763
764 public:
765
776 virtual UClassID getDynamicClassID(void) const override;
777
789 static UClassID U_EXPORT2 getStaticClassID(void);
790
791 private:
795 enum EMode
796 {
797 DOM_MODE = 1,
798 DOW_IN_MONTH_MODE,
799 DOW_GE_DOM_MODE,
800 DOW_LE_DOM_MODE
801 };
802
803 SimpleTimeZone(); // default constructor not implemented
804
824 void construct(int32_t rawOffsetGMT,
825 int8_t startMonth, int8_t startDay, int8_t startDayOfWeek,
826 int32_t startTime, TimeMode startTimeMode,
827 int8_t endMonth, int8_t endDay, int8_t endDayOfWeek,
828 int32_t endTime, TimeMode endTimeMode,
829 int32_t dstSavings, UErrorCode& status);
830
840 static int32_t compareToRule(int8_t month, int8_t monthLen, int8_t prevMonthLen,
841 int8_t dayOfMonth,
842 int8_t dayOfWeek, int32_t millis, int32_t millisDelta,
843 EMode ruleMode, int8_t ruleMonth, int8_t ruleDayOfWeek,
844 int8_t ruleDay, int32_t ruleMillis);
845
861 void decodeRules(UErrorCode& status);
862 void decodeStartRule(UErrorCode& status);
863 void decodeEndRule(UErrorCode& status);
864
865 int8_t startMonth, startDay, startDayOfWeek; // the month, day, DOW, and time DST starts
866 int32_t startTime;
867 TimeMode startTimeMode, endTimeMode; // Mode for startTime, endTime; see TimeMode
868 int8_t endMonth, endDay, endDayOfWeek; // the month, day, DOW, and time DST ends
869 int32_t endTime;
870 int32_t startYear; // the year these DST rules took effect
871 int32_t rawOffset; // the TimeZone's raw GMT offset
872 UBool useDaylight; // flag indicating whether this TimeZone uses DST
873 static const int8_t STATICMONTHLENGTH[12]; // lengths of the months
874 EMode startMode, endMode; // flags indicating what kind of rules the DST rules are
875
880 int32_t dstSavings;
881
882 /* Private for BasicTimeZone implementation */
883 void checkTransitionRules(UErrorCode& status) const;
884 void initTransitionRules(UErrorCode& status);
885 void clearTransitionRules(void);
886 void deleteTransitionRules(void);
887 UBool transitionRulesInitialized;
888 InitialTimeZoneRule* initialRule;
889 TimeZoneTransition* firstTransition;
890 AnnualTimeZoneRule* stdRule;
891 AnnualTimeZoneRule* dstRule;
892 };
893
894 inline void SimpleTimeZone::setStartRule(int32_t month, int32_t dayOfWeekInMonth,
895 int32_t dayOfWeek,
896 int32_t time, UErrorCode& status) {
897 setStartRule(month, dayOfWeekInMonth, dayOfWeek, time, WALL_TIME, status);
898 }
899
900 inline void SimpleTimeZone::setStartRule(int32_t month, int32_t dayOfMonth,
901 int32_t time,
902 UErrorCode& status) {
903 setStartRule(month, dayOfMonth, time, WALL_TIME, status);
904 }
905
906 inline void SimpleTimeZone::setStartRule(int32_t month, int32_t dayOfMonth,
907 int32_t dayOfWeek,
908 int32_t time, UBool after, UErrorCode& status) {
909 setStartRule(month, dayOfMonth, dayOfWeek, time, WALL_TIME, after, status);
910 }
911
912 inline void SimpleTimeZone::setEndRule(int32_t month, int32_t dayOfWeekInMonth,
913 int32_t dayOfWeek,
914 int32_t time, UErrorCode& status) {
915 setEndRule(month, dayOfWeekInMonth, dayOfWeek, time, WALL_TIME, status);
916 }
917
918 inline void SimpleTimeZone::setEndRule(int32_t month, int32_t dayOfMonth,
919 int32_t time, UErrorCode& status) {
920 setEndRule(month, dayOfMonth, time, WALL_TIME, status);
921 }
922
923 inline void SimpleTimeZone::setEndRule(int32_t month, int32_t dayOfMonth, int32_t dayOfWeek,
924 int32_t time, UBool after, UErrorCode& status) {
925 setEndRule(month, dayOfMonth, dayOfWeek, time, WALL_TIME, after, status);
926 }
927
928 inline void
929 SimpleTimeZone::getOffset(UDate date, UBool local, int32_t& rawOffsetRef,
930 int32_t& dstOffsetRef, UErrorCode& ec) const {
931 TimeZone::getOffset(date, local, rawOffsetRef, dstOffsetRef, ec);
932 }
933
934 U_NAMESPACE_END
935
936 #endif /* #if !UCONFIG_NO_FORMATTING */
937
938 #endif /* U_SHOW_CPLUSPLUS_API */
939
940 #endif // _SIMPLETZ
icu::TimeZone::operator==
virtual bool operator==(const TimeZone &that) const
Returns true if the two TimeZones are equal.
icu::TimeZone::getDSTSavings
virtual int32_t getDSTSavings() const
Returns the amount of time to be added to local standard time to get local wall clock time.
utypes.h
Basic definitions for ICU, for both C and C++ APIs.
icu::TimeZone::inDaylightTime
virtual UBool inDaylightTime(UDate date, UErrorCode &status) const =0
Queries if the given date is in daylight savings time in this time zone.
U_I18N_API
#define U_I18N_API
Definition: utypes.h:301
icu::TimeZone::setRawOffset
virtual void setRawOffset(int32_t offsetMillis)=0
Sets the TimeZone's raw GMT offset (i.e., the number of milliseconds to add to GMT to get local time,...
UBool
int8_t UBool
The ICU boolean type, a signed-byte integer.
Definition: umachine.h:269
icu::BasicTimeZone::clone
virtual BasicTimeZone * clone() const override=0
Clones this object polymorphically.
icu::BasicTimeZone
BasicTimeZone is an abstract class extending TimeZone.
Definition: basictz.h:38
icu::TimeZone::getDynamicClassID
virtual UClassID getDynamicClassID(void) const override=0
Returns a unique class ID POLYMORPHICALLY.
icu::TimeZoneRule
TimeZoneRule is a class representing a rule for time zone.
Definition: tzrule.h:36
icu::TimeZone
TimeZone represents a time zone offset, and also figures out daylight savings.
Definition: timezone.h:133
icu::TimeZone::getStaticClassID
static UClassID getStaticClassID(void)
Return the class ID for this class.
icu::UnicodeString
UnicodeString is a string class that stores Unicode characters directly and provides similar function...
Definition: unistr.h:295
icu::BasicTimeZone::getNextTransition
virtual UBool getNextTransition(UDate base, UBool inclusive, TimeZoneTransition &result) const =0
Gets the first time zone transition after the base time.
UClassID
void * UClassID
UClassID is used to identify classes without using the compiler's RTTI.
Definition: uobject.h:96
UErrorCode
UErrorCode
Standard ICU4C error code type, a substitute for exceptions.
Definition: utypes.h:415
basictz.h
C++ API: ICU TimeZone base class.
icu::TimeZone::getOffset
virtual int32_t getOffset(uint8_t era, int32_t year, int32_t month, int32_t day, uint8_t dayOfWeek, int32_t millis, UErrorCode &status) const =0
Returns the TimeZone's adjusted GMT offset (i.e., the number of milliseconds to add to GMT to get loc...
icu::SimpleTimeZone
SimpleTimeZone is a concrete subclass of TimeZone that represents a time zone for use with a Gregoria...
Definition: simpletz.h:65
icu::InitialTimeZoneRule
InitialTimeZoneRule represents a time zone rule representing a time zone effective from the beginning...
Definition: tzrule.h:202
icu::BasicTimeZone::countTransitionRules
virtual int32_t countTransitionRules(UErrorCode &status) const =0
Returns the number of TimeZoneRules which represents time transitions, for this time zone,...
icu::TimeZoneTransition
TimeZoneTransition is a class representing a time zone transition.
Definition: tztrans.h:35
icu::BasicTimeZone::getOffsetFromLocal
virtual void getOffsetFromLocal(UDate date, UTimeZoneLocalOption nonExistingTimeOpt, UTimeZoneLocalOption duplicatedTimeOpt, int32_t &rawOffset, int32_t &dstOffset, UErrorCode &status) const
Get time zone offsets from local wall time.
icu::SimpleTimeZone::TimeMode
TimeMode
TimeMode is used, together with a millisecond offset after midnight, to specify a rule transition tim...
Definition: simpletz.h:79
UTimeZoneLocalOption
UTimeZoneLocalOption
Options used by ucal_getTimeZoneOffsetFromLocal and BasicTimeZone::getOffsetFromLocal() to specify ho...
Definition: ucal.h:1626
UDate
double UDate
Date and Time data type.
Definition: utypes.h:203
icu::BasicTimeZone::operator=
BasicTimeZone & operator=(const BasicTimeZone &)=default
Copy assignment.
icu::TimeZone::useDaylightTime
virtual UBool useDaylightTime(void) const =0
Queries if this time zone uses daylight savings time.
icu::TimeZone::hasSameRules
virtual UBool hasSameRules(const TimeZone &other) const
Returns true if this zone has the same rule and offset as another zone.
icu::BasicTimeZone::getPreviousTransition
virtual UBool getPreviousTransition(UDate base, UBool inclusive, TimeZoneTransition &result) const =0
Gets the most recent time zone transition before the base time.
icu::BasicTimeZone::getTimeZoneRules
virtual void getTimeZoneRules(const InitialTimeZoneRule *&initial, const TimeZoneRule *trsrules[], int32_t &trscount, UErrorCode &status) const =0
Gets the InitialTimeZoneRule and the set of TimeZoneRule which represent time transitions for this ti...
icu::TimeZone::getRawOffset
virtual int32_t getRawOffset(void) const =0
Returns the TimeZone's raw GMT offset (i.e., the number of milliseconds to add to GMT to get local ti...